US20120204192A1 - Image rescue - Google Patents

Image rescue Download PDF

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US20120204192A1
US20120204192A1 US13/451,594 US201213451594A US2012204192A1 US 20120204192 A1 US20120204192 A1 US 20120204192A1 US 201213451594 A US201213451594 A US 201213451594A US 2012204192 A1 US2012204192 A1 US 2012204192A1
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mass storage
operating system
interface
storage data
application program
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US9213606B2 (en
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Neal Anthony Galbo
Berhanu Iman
Ngon Le
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US Bank NA
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Micron Technology Inc
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/14—Error detection or correction of the data by redundancy in operation
    • G06F11/1402—Saving, restoring, recovering or retrying
    • G06F11/1415—Saving, restoring, recovering or retrying at system level
    • G06F11/1435—Saving, restoring, recovering or retrying at system level using file system or storage system metadata
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
    • G06F3/0655—Vertical data movement, i.e. input-output transfer; data movement between one or more hosts and one or more storage devices
    • G06F3/0659—Command handling arrangements, e.g. command buffers, queues, command scheduling
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
    • G06F3/0671—In-line storage system
    • G06F3/0673—Single storage device

Definitions

  • the present invention relates generally to the field of retrieval and recovery of information and particularly to rapid and efficient retrieval and recovery of information stored in a mass storage device, which is accessible or inaccessible to an operating system.
  • PC personal computer
  • Digital data may be stored in a PC either internally as in a hard disk or externally in a mass storage data device such as a digital photo reader or a compact flash reader device.
  • an application program operating under a standard commercially available operating system accesses a mass storage data device for reading and/or writing of digital data.
  • the operating system recognizes the mass storage data device and “mounts” it as an operating system data volume, i.e., a “disk drive”.
  • the application program thereby accesses the mass storage data device at the logical level within the operating system using the operating system formatting information included within the mass storage data device.
  • the conventional methods of accessing digital data have a limitation that is encountered when the mass storage data device is for some reason corrupted. In the event of corruption of the mass storage data device, the electronic system cannot recover the digital data simply because the operating system is unable to communicate with the mass storage data device.
  • Another limitation of the conventional methods of accessing digital data is that the application program commands the mass storage data device only with standard commands available to the operating system.
  • the method and apparatus should not interfere with normal operations of the operating system, i.e. be transparent to the operating system.
  • the desired method and apparatus should be able to access, retrieve, and recover information efficiently and cost-effectively.
  • an embodiment of the present invention includes an image rescue system having an application program for communication with a mass storage device, said application program being in communication with an operating system layer for accessing said mass storage device to read and write information.
  • the image rescue system further includes a device driver in communication with said application program, said operating system layer and said mass storage device, said device driver for allowing said application program to access said mass storage device to read and write information by bypassing said operating system layer, said device driver for communicating with said mass storage device to allow said application program to rapidly access information in said mass storage device considered damaged by said operating system layer, said damaged information being inaccessible to said operating system layer, wherein said image rescue system accesses said mass storage device to rapidly and efficiently retrieve and recover information accessible and inaccessible to said operating system layer.
  • FIG. 1 shows an image rescue system 10 , in accordance with an embodiment of the present invention.
  • FIG. 2 shows a representation of physical blocks and the file allocation grouping as used by the operating system, in accordance with an embodiment of the present invention.
  • the present invention employs a technique for directly accessing common mass storage data devices at the physical, rather than logical, device level; without assistance from operating system programming facilities. This allows for recovery, reconstruction and retrieval of valid user data files from a mass storage data device that the operating system would normally consider a “damaged” or corrupted mass storage data device.
  • the present invention allows the operating system to be extended to support the addition of an external mass storage data device to be added to the operating system as a standard system data volume or what is commonly known as a “disk drive”.
  • An application program in concert with a device driver for the mass storage data device allow for rapid retrieval of what appears to be to the operating system “lost” or corrupted data from the mass storage data device.
  • the “mass storage data device” for which the application and driver is designed is Lexar Media, Inc. brand compact Flash cards connected to a personal computer(PC) or a Macintosh computer (Mac) via a universal serial bus (USB) 1.x connection via a Lexar Media brand Jumpshot cable.
  • PC personal computer
  • Mac Macintosh computer
  • USB universal serial bus
  • the application is not limited to this type of mass storage data device or this type of connection to the computer.
  • the techniques described below will work for almost any mass storage data device, any storage technology, which is connected to the host computer in almost any way.
  • the application program employs a novel I/O access technique to allow the application program that is operating under a standard commercially available operating system to access a mass storage data device for reading or writing, regardless of whether or not the operating system recognizes the mass storage data device as a valid operating system formatted storage device such as a disk volume. That is, communication with the mass storage data device is possible through the Lexar application program whether or not the operating system recognizes the mass storage data device and “mounts” it as an operating system data volume, i.e. “disk drive”.
  • the application can access the mass storage data device at the physical device level, as opposed to what is commonly known as the logical device level within the operating system.
  • Lexar Media operating system extension device driver that supports the mass storage data device.
  • the device driver is commonly supplied by the mass storage data device manufacturer or the author of the application program utility, i.e. Lexar Media.
  • the technique employed is to include an additional proprietary layer of program interface within the standard device driver. This additional layer provides added functionality to allow an application program that is aware of this added interface to directly access the facilities provided within the device driver while circumventing the operating system.
  • the operating system is completely unaware of this added proprietary access interface within the device driver.
  • the device driver appears to the operating system to be a “standard” device driver in all respects; the operating system is completely unaware of the additional proprietary interface.
  • the application program is able to locate the proprietary interface within the device driver using standard operating system functions and procedures.
  • the application program can call the functions and procedures located within the proprietary interface.
  • the functions and procedures within the proprietary interface are “invisible” to the operating system and do not interfere with the operating system and its normal interaction with the Lexar device driver.
  • the functions and procedures within the proprietary interface allow the Lexar application program to access the mass storage data device at the physical level; allowing the application program to command the mass storage data device with standard commands along with vendor unique commands; thus allowing the application program to access information and data areas that are not normally accessible to the operating system.
  • an image rescue system 10 is shown to include a personal computer (PC) 12 coupled to a device 14 in accordance with an embodiment of the present invention.
  • the device 14 can be one of many types of devices, examples of which are compact flash reader devices, a digital photo reader, a Jumpshot product manufactured by Lexar Media, Inc. of Fremont, Calif., or any other type of mass storage product.
  • the PC 12 is shown to include an application program 16 , which is in communication with the operating system layer 18 through an application program interface 22 .
  • the operating system layer 18 is shown to be in communication with a driver 20 through an operating system input/output (I/O) interface 24 and a driver I/O interface 32 .
  • the driver 20 is shown to include an access interface 26 , which causes direct communication with the device 14 through a hardware interface layer 28 and the hardware bus 30 .
  • the application program 16 is in direct communication with the access interface 26 through the direct access bus 34 thereby circumventing the operating system layer 18 .
  • the hardware bus 30 conforms to different standards and is thus referred to as a different interface.
  • Examples of the different types of hardware bus 30 are USB, PCMCIA, IDE, mass storage interface, fire wire and blue tooth.
  • the application program must communicate through the operating system layer to the driver.
  • the problem with such prior art methods is that in the event of some sort of corruption of the device 14 , the system can not recover the device simply because the operating system is unable to communicate with the device.
  • the driver 20 identifies the device 14 and recovers the information previously stored in the device even though the device 14 includes corrupt information.
  • different drivers 20 are employed for different types of devices that device 14 can be.
  • the access interface 26 includes different extensions based upon the kind of device employed as device 14 . Bypassing the operating system layer 18 enables establishing communication with devices, as device 14 , that the PC 12 is not able to communicate with if the operating system layer 18 is not bypassed.
  • the application program 16 rapidly searches and recovers certain types of user data files from a corrupted or non-corrupted mass storage data device, i.e. device 14 .
  • the device 14 is searched at the physical “raw” device level without the benefit of using the operating system layer 18 formatting information that may or may not be included within the device 14 .
  • the technique employed searches for certain data file types that have distinguishable data “headers”.
  • the “header” area includes data patterns that are unique to certain file types, for example, but not limited to, joint photographic experts group (JPEG) files or tagged image file format (TIFF) files.
  • JPEG joint photographic experts group
  • TIFF tagged image file format
  • the application program also utilizes information gathered from the mass storage data device to formulate an algorithm to allow for an intelligent search of the mass storage data device instead of a “brute force” byte-by-byte search.
  • the application program first directly queries the mass storage data device for its device characteristics using the access technique described hereinabove. This information is used to establish the absolute size in bytes of the device 14 along with obtaining its physical block size.
  • the physical block size is the smallest unit of access that can be read or written to the mass storage data device. This unit is usually described as a binary multiple of a number of bytes, usually in the range of hundreds or thousands of bytes.
  • the application will then attempt to read the operating system formatting information on the mass storage data device. This information is operating system dependent, the application knows what operating system it is running under and interprets the data accordingly. Since the formatting data may be damaged or corrupted, the application program attempts to determine if the formatting information is valid by examining certain operating system specific parameters contained within the formatting information for reasonable values.
  • FIG. 2 shows a representation of “search allocation units” 40 .
  • the application After investigating the formatting information, if the application determines that the information is valid, it will retrieve the operating system “file allocation unit” 41 .
  • This value is the smallest sized data block that the operating system will access file data on the mass storage data device. This value is usually described in units of physical block size 42 ; therefore the file allocation unit 41 is a multiple of physical block size; usually in the range of thousands of bytes.
  • the application program will then use the largest determined block size 42 as its search allocation unit; this will be either the physical block size 42 or the operating system allocation unit size 41 .
  • the application program searches for pertinent file header information 43 at the boundaries of these units; at the very most, the file allocation unit 41 ; at the very least the physical block size 42 of the mass storage data device.

Abstract

An image rescue system includes an application program for communication with a mass storage device, the application program being in communication with an operating system layer for accessing the mass storage device to read and write information. The image rescue system further includes a device driver in communication with the application program, the operating system layer and the mass storage device, the device driver for allowing the application program to access the mass storage device to read and write information by bypassing the operating system layer, the device driver for communicating with the mass storage device to allow the application program to access information in the mass storage device considered damaged by the operating system layer, the damaged information being inaccessible to the operating system layer, wherein the image rescue system accesses the mass storage device to retrieve and recover information accessible and inaccessible to the operating system layer.

Description

    RELATED APPLICATIONS
  • This application is a divisional of U.S. application Ser. No. 11/654,290, titled “IMAGE RESCUE,” filed Jan. 16, 2007 (Allowed), which is a continuation of U.S. application Ser. No. 10/371,930, filed Feb. 21, 2003, now U.S. Pat. No. 7,231,643, which claims the benefit of U.S. Provisional application No. 60/359,510, filed on Feb. 22, 2002, each of which is incorporated by reference in their entirety.
    • TECHNICAL FIELD
  • The present invention relates generally to the field of retrieval and recovery of information and particularly to rapid and efficient retrieval and recovery of information stored in a mass storage device, which is accessible or inaccessible to an operating system.
    • BACKGROUND
  • In modern electronic systems, storage, retrieval, and recovery of digital information plays a significant role in the operation of devices included within such systems. A common example of an electronic system is a personal computer (PC), which requires access to digital data for processing thereof to perform and execute a wide variety of tasks. Digital data may be stored in a PC either internally as in a hard disk or externally in a mass storage data device such as a digital photo reader or a compact flash reader device.
  • In the conventional methods of accessing digital data, as implemented in electronic systems, an application program operating under a standard commercially available operating system accesses a mass storage data device for reading and/or writing of digital data. The operating system recognizes the mass storage data device and “mounts” it as an operating system data volume, i.e., a “disk drive”. The application program thereby accesses the mass storage data device at the logical level within the operating system using the operating system formatting information included within the mass storage data device.
  • However, the conventional methods of accessing digital data have a limitation that is encountered when the mass storage data device is for some reason corrupted. In the event of corruption of the mass storage data device, the electronic system cannot recover the digital data simply because the operating system is unable to communicate with the mass storage data device. Another limitation of the conventional methods of accessing digital data is that the application program commands the mass storage data device only with standard commands available to the operating system.
  • In light of the foregoing, it is desirable to develop a method and apparatus for accessing digital data even when the mass storage data device is corrupted and the operating system cannot communicate therewith. Further, the method and apparatus should not interfere with normal operations of the operating system, i.e. be transparent to the operating system. The desired method and apparatus should be able to access, retrieve, and recover information efficiently and cost-effectively.
    • SUMMARY
  • Briefly, an embodiment of the present invention includes an image rescue system having an application program for communication with a mass storage device, said application program being in communication with an operating system layer for accessing said mass storage device to read and write information. The image rescue system further includes a device driver in communication with said application program, said operating system layer and said mass storage device, said device driver for allowing said application program to access said mass storage device to read and write information by bypassing said operating system layer, said device driver for communicating with said mass storage device to allow said application program to rapidly access information in said mass storage device considered damaged by said operating system layer, said damaged information being inaccessible to said operating system layer, wherein said image rescue system accesses said mass storage device to rapidly and efficiently retrieve and recover information accessible and inaccessible to said operating system layer.
  • The foregoing and other objects, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments which make reference to several figures of the drawing.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 shows an image rescue system 10, in accordance with an embodiment of the present invention.
  • FIG. 2 shows a representation of physical blocks and the file allocation grouping as used by the operating system, in accordance with an embodiment of the present invention.
    •  DETAILED DESCRIPTION
  • The present invention employs a technique for directly accessing common mass storage data devices at the physical, rather than logical, device level; without assistance from operating system programming facilities. This allows for recovery, reconstruction and retrieval of valid user data files from a mass storage data device that the operating system would normally consider a “damaged” or corrupted mass storage data device.
  • The present invention allows the operating system to be extended to support the addition of an external mass storage data device to be added to the operating system as a standard system data volume or what is commonly known as a “disk drive”. An application program in concert with a device driver for the mass storage data device allow for rapid retrieval of what appears to be to the operating system “lost” or corrupted data from the mass storage data device.
  • In one embodiment of the present invention, the “mass storage data device” for which the application and driver is designed is Lexar Media, Inc. brand compact Flash cards connected to a personal computer(PC) or a Macintosh computer (Mac) via a universal serial bus (USB) 1.x connection via a Lexar Media brand Jumpshot cable. The application is not limited to this type of mass storage data device or this type of connection to the computer. The techniques described below will work for almost any mass storage data device, any storage technology, which is connected to the host computer in almost any way.
  • As will be explained in further detail with respect to FIG. 1, the application program employs a novel I/O access technique to allow the application program that is operating under a standard commercially available operating system to access a mass storage data device for reading or writing, regardless of whether or not the operating system recognizes the mass storage data device as a valid operating system formatted storage device such as a disk volume. That is, communication with the mass storage data device is possible through the Lexar application program whether or not the operating system recognizes the mass storage data device and “mounts” it as an operating system data volume, i.e. “disk drive”. The application can access the mass storage data device at the physical device level, as opposed to what is commonly known as the logical device level within the operating system. This is accomplished by a unique and novel method within the Lexar Media operating system extension device driver that supports the mass storage data device. The device driver is commonly supplied by the mass storage data device manufacturer or the author of the application program utility, i.e. Lexar Media. The technique employed is to include an additional proprietary layer of program interface within the standard device driver. This additional layer provides added functionality to allow an application program that is aware of this added interface to directly access the facilities provided within the device driver while circumventing the operating system. The operating system is completely unaware of this added proprietary access interface within the device driver. The device driver appears to the operating system to be a “standard” device driver in all respects; the operating system is completely unaware of the additional proprietary interface. The application program is able to locate the proprietary interface within the device driver using standard operating system functions and procedures. Once the proprietary interface is located and “attached” to the application program, the application program can call the functions and procedures located within the proprietary interface. The functions and procedures within the proprietary interface are “invisible” to the operating system and do not interfere with the operating system and its normal interaction with the Lexar device driver. The functions and procedures within the proprietary interface allow the Lexar application program to access the mass storage data device at the physical level; allowing the application program to command the mass storage data device with standard commands along with vendor unique commands; thus allowing the application program to access information and data areas that are not normally accessible to the operating system.
  • Referring now to FIG. 1, an image rescue system 10 is shown to include a personal computer (PC) 12 coupled to a device 14 in accordance with an embodiment of the present invention. The device 14 can be one of many types of devices, examples of which are compact flash reader devices, a digital photo reader, a Jumpshot product manufactured by Lexar Media, Inc. of Fremont, Calif., or any other type of mass storage product.
  • The PC 12 is shown to include an application program 16, which is in communication with the operating system layer 18 through an application program interface 22. The operating system layer 18 is shown to be in communication with a driver 20 through an operating system input/output (I/O) interface 24 and a driver I/O interface 32. The driver 20 is shown to include an access interface 26, which causes direct communication with the device 14 through a hardware interface layer 28 and the hardware bus 30. As shown in FIG. 1, the application program 16 is in direct communication with the access interface 26 through the direct access bus 34 thereby circumventing the operating system layer 18.
  • In various embodiments of the present invention, the hardware bus 30 conforms to different standards and is thus referred to as a different interface. Examples of the different types of hardware bus 30 are USB, PCMCIA, IDE, mass storage interface, fire wire and blue tooth.
  • In prior art methods, the application program must communicate through the operating system layer to the driver. The problem with such prior art methods is that in the event of some sort of corruption of the device 14, the system can not recover the device simply because the operating system is unable to communicate with the device. In the present invention however, the driver 20 identifies the device 14 and recovers the information previously stored in the device even though the device 14 includes corrupt information. It should be noted that different drivers 20 are employed for different types of devices that device 14 can be. Similarly, the access interface 26 includes different extensions based upon the kind of device employed as device 14. Bypassing the operating system layer 18 enables establishing communication with devices, as device 14, that the PC 12 is not able to communicate with if the operating system layer 18 is not bypassed.
  • Referring still to FIG. 1, the application program 16 rapidly searches and recovers certain types of user data files from a corrupted or non-corrupted mass storage data device, i.e. device 14. The device 14 is searched at the physical “raw” device level without the benefit of using the operating system layer 18 formatting information that may or may not be included within the device 14.
  • The technique employed searches for certain data file types that have distinguishable data “headers”. The “header” area includes data patterns that are unique to certain file types, for example, but not limited to, joint photographic experts group (JPEG) files or tagged image file format (TIFF) files. The application program also utilizes information gathered from the mass storage data device to formulate an algorithm to allow for an intelligent search of the mass storage data device instead of a “brute force” byte-by-byte search. The application program first directly queries the mass storage data device for its device characteristics using the access technique described hereinabove. This information is used to establish the absolute size in bytes of the device 14 along with obtaining its physical block size.
  • The physical block size, described in units of bytes, is the smallest unit of access that can be read or written to the mass storage data device. This unit is usually described as a binary multiple of a number of bytes, usually in the range of hundreds or thousands of bytes. The application will then attempt to read the operating system formatting information on the mass storage data device. This information is operating system dependent, the application knows what operating system it is running under and interprets the data accordingly. Since the formatting data may be damaged or corrupted, the application program attempts to determine if the formatting information is valid by examining certain operating system specific parameters contained within the formatting information for reasonable values.
  • FIG. 2 shows a representation of “search allocation units” 40. In FIG. 2, after investigating the formatting information, if the application determines that the information is valid, it will retrieve the operating system “file allocation unit” 41. This value is the smallest sized data block that the operating system will access file data on the mass storage data device. This value is usually described in units of physical block size 42; therefore the file allocation unit 41 is a multiple of physical block size; usually in the range of thousands of bytes. The application program will then use the largest determined block size 42 as its search allocation unit; this will be either the physical block size 42 or the operating system allocation unit size 41.
  • Knowing that the operating system will only write file data in units of file allocation unit sizes, the application program searches for pertinent file header information 43 at the boundaries of these units; at the very most, the file allocation unit 41; at the very least the physical block size 42 of the mass storage data device.
  • This, therefore, will substantially increase the speed of the search as opposed to a byte-by-byte search on the mass storage data device. It is only necessary to examine the beginning of the search allocation units for the file header information 43. If no match of header information is found, the search algorithm skips to the beginning of the next search allocation unit on the mass storage data device. This process is continued until all areas on the mass storage data device have been examined.
  • Although the present invention has been described in terms of specific embodiment, it is anticipated that alterations and modifications thereof will no doubt become apparent to those more skilled in the art. It is therefore intended that the following claims be interpreted as covering all such alterations and modification as fall within the true spirit and scope of the invention.

Claims (20)

1. An image rescue system comprising:
a direct access bus coupled to an application program; and
an access interface coupled to the bus for use in a personal computer having an operating system layer and in communication with a device, the operating system layer being in communication with the application program;
wherein the access interface allows for direct communication with the application program through the direct access bus thereby circumventing the operating system layer allowing for accessing of the device at the physical device level.
2. The image rescue system of claim 1, further including a driver in communication with the access interface.
3. The image rescue system of claim 1, further including a hardware interface layer in communication with the access interface.
4. The image rescue system of claim 3, further including a hardware bus coupled to cause communication between the device and the hardware interface layer.
5. The image rescue system of claim 4, further including a driver I/O interface coupled between the access interface and the device.
6. A mass storage data device for use in an image rescue system comprising:
means for coupling to an access interface that is in communication with an operating system layer, which is in turn in communication with an application program through a direct access bus, the operating system layer being in communication with the application program;
wherein the access interface allowing for direct communication with the the operating system layer allowing for accessing of the device at the physical device level.
7. The mass storage data device of claim 6, further including a driver in communication with the access interface.
8. The mass storage data device of claim 6, further including a hardware interface layer in communication with the access interface.
9. The mass storage data device of claim 8, further including a hardware bus coupled to cause communication between the device and the hardware interface layer.
10. The mass storage data device of claim 9, further including a driver I/O interface coupled between the access interface and the device.
11. The mass storage data device of claim 9, wherein the device is a compact flash reader device.
12. The mass storage data device of claim 9, wherein the device is a digital photo reader.
13. An image rescue system comprising:
an operating system layer in communication with the application program;
a device driver having a first interface for communicating with the application program through the operating system layer, and having a second interface for communicating with the application program without assistance from programming facilities of the operating system layer; and
a hardware bus configured for communicating between the device driver and a mass storage data device.
14. The image rescue system of claim 13, wherein the second interface of the driver is configured to facilitate access to areas of the mass storage device that are inaccessible to the operating system layer.
15. The image rescue system of claim 13, further comprising the mass storage data device.
16. The image rescue system of claim 15, wherein the mass storage data device is a compact flash card.
17. The image rescue system of claim 13, wherein the application program is configured to access the mass storage data device at a logical device level when communicating with the mass storage data device through the first interface of the device driver, and to access the mass storage data device at a physical device level when communicating with the mass storage data device through the second interface of the device driver.
18. The image rescue system of claim 13, wherein the application program is configured to access the mass storage data device through the second interface of the device driver even if the operating system layer does not recognize the mass storage data device as a valid operating system formatted storage device.
19. The image rescue system of claim 13, wherein the hardware bus is selected from the group consisting of USB, PCMCIA, IDE, mass storage interface, fire wire and blue tooth buses.
20. The image rescue system of claim 13, wherein the image rescue system is a personal computer.
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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7093161B1 (en) * 2002-08-16 2006-08-15 Onspec Electronic, Inc. Software recovery method for flash media with defective formatting
US7295443B2 (en) 2000-07-06 2007-11-13 Onspec Electronic, Inc. Smartconnect universal flash media card adapters
US6438638B1 (en) 2000-07-06 2002-08-20 Onspec Electronic, Inc. Flashtoaster for reading several types of flash-memory cards with or without a PC
US8122322B2 (en) 2007-07-31 2012-02-21 Seagate Technology Llc System and method of storing reliability data
US8307131B2 (en) * 2007-11-12 2012-11-06 Gemalto Sa System and method for drive resizing and partition size exchange between a flash memory controller and a smart card
US8429391B2 (en) 2010-04-16 2013-04-23 Micron Technology, Inc. Boot partitions in memory devices and systems
US11822706B2 (en) * 2021-05-26 2023-11-21 EMC IP Holding Company LLC Logical storage device access using device-specific keys in an encrypted storage environment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5671442A (en) * 1993-02-12 1997-09-23 International Business Machines Corporation System having device driver operates in first mode for allowing concurrent access to adapter by applications and second mode for limiting access to one application
US6138200A (en) * 1998-06-09 2000-10-24 International Business Machines Corporation System for allocating bus bandwidth by assigning priority for each bus duration time slot to application using bus frame and bus duration
US6173291B1 (en) * 1997-09-26 2001-01-09 Powerquest Corporation Method and apparatus for recovering data from damaged or corrupted file storage media

Family Cites Families (278)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52130536A (en) 1976-04-26 1977-11-01 Toshiba Corp Semiconductor memory unit
US4099069A (en) 1976-10-08 1978-07-04 Westinghouse Electric Corp. Circuit producing a common clear signal for erasing selected arrays in a mnos memory system
US4398248A (en) 1980-10-20 1983-08-09 Mcdonnell Douglas Corporation Adaptive WSI/MNOS solid state memory system
GB2020437B (en) 1978-04-14 1982-08-04 Seiko Instr & Electronics Voltage detecting circuit
US4210959A (en) 1978-05-10 1980-07-01 Apple Computer, Inc. Controller for magnetic disc, recorder, or the like
FR2426938A1 (en) 1978-05-26 1979-12-21 Cii Honeywell Bull DEVICE FOR DETECTION OF DEFECTIVE SECTORS AND ALLOCATION OF REPLACEMENT SECTORS IN A DISK MEMORY
JPS559260A (en) 1978-07-03 1980-01-23 Nec Corp Information processing system
US4532590A (en) 1980-04-25 1985-07-30 Data General Corporation Data processing system having a unique address translation unit
US4355376A (en) 1980-09-30 1982-10-19 Burroughs Corporation Apparatus and method for utilizing partially defective memory devices
JPS5764383A (en) 1980-10-03 1982-04-19 Toshiba Corp Address converting method and its device
JPS57132256A (en) 1981-02-09 1982-08-16 Sony Corp Memory device
JPS5877034A (en) 1981-10-30 1983-05-10 Hitachi Ltd Controlling system for unrewritable storage device
US4473878A (en) 1981-11-23 1984-09-25 Motorola, Inc. Memory management unit
US4468730A (en) 1981-11-27 1984-08-28 Storage Technology Corporation Detection of sequential data stream for improvements in cache data storage
US4476526A (en) 1981-11-27 1984-10-09 Storage Technology Corporation Cache buffered memory subsystem
US4450559A (en) 1981-12-24 1984-05-22 International Business Machines Corporation Memory system with selective assignment of spare locations
JPS58215795A (en) 1982-06-08 1983-12-15 Toshiba Corp Non-volatile memory device
JPS58215794A (en) 1982-06-08 1983-12-15 Toshiba Corp Non-volatile memory device
US4498146A (en) 1982-07-30 1985-02-05 At&T Bell Laboratories Management of defects in storage media
JPS5945695U (en) 1982-09-14 1984-03-26 ニツタン株式会社 fire alarm equipment
US4710871A (en) 1982-11-01 1987-12-01 Ncr Corporation Data transmitting and receiving apparatus
JPS59162695A (en) 1983-03-07 1984-09-13 Nec Corp Storage device
US4609833A (en) 1983-08-12 1986-09-02 Thomson Components-Mostek Corporation Simple NMOS voltage reference circuit
US4896262A (en) 1984-02-24 1990-01-23 Kabushiki Kaisha Meidensha Emulation device for converting magnetic disc memory mode signal from computer into semiconductor memory access mode signal for semiconductor memory
JPS60212900A (en) 1984-04-09 1985-10-25 Nec Corp Semiconductor fixed memory
JPS618798A (en) 1984-06-21 1986-01-16 Nec Corp Nonvolatile storage device
JPS6180597A (en) 1984-09-26 1986-04-24 Hitachi Ltd Semiconductor memory device
JPS6196598U (en) 1984-11-30 1986-06-21
US4654847A (en) 1984-12-28 1987-03-31 International Business Machines Apparatus for automatically correcting erroneous data and for storing the corrected data in a common pool alternate memory array
JPS61208673A (en) 1985-03-12 1986-09-17 Matsushita Electric Ind Co Ltd Information recording and reproducing device
US4744062A (en) 1985-04-23 1988-05-10 Hitachi, Ltd. Semiconductor integrated circuit with nonvolatile memory
US4829169A (en) 1985-07-01 1989-05-09 Toppan Moore Company, Inc. IC card having state marker for record access
JPH0635227B2 (en) 1985-07-31 1994-05-11 トツパン・ム−ア株式会社 IC card having means for reading update information and history information
JPS62102482A (en) 1985-10-28 1987-05-12 Matsushita Electric Ind Co Ltd Information recording and reproducing device
JP2664137B2 (en) 1985-10-29 1997-10-15 凸版印刷株式会社 IC card
US4800520A (en) 1985-10-29 1989-01-24 Kabushiki Kaisha Toshiba Portable electronic device with garbage collection function
US4746998A (en) 1985-11-20 1988-05-24 Seagate Technology, Inc. Method for mapping around defective sectors in a disc drive
US4924331A (en) 1985-11-20 1990-05-08 Seagate Technology, Inc. Method for mapping around defective sectors in a disc drive
DE3640238A1 (en) 1985-11-30 1987-06-25 Toshiba Kawasaki Kk PORTABLE ELECTRONIC DEVICE
US4757474A (en) 1986-01-28 1988-07-12 Fujitsu Limited Semiconductor memory device having redundancy circuit portion
JPH07114499B2 (en) 1986-12-24 1995-12-06 株式会社日立製作所 Data encoding method
JP2685173B2 (en) 1986-05-31 1997-12-03 キヤノン株式会社 Memory write control method
JPH07109717B2 (en) 1986-05-31 1995-11-22 キヤノン株式会社 Memory write control method
JPH0784871B2 (en) 1986-06-12 1995-09-13 株式会社日立製作所 Vacuum exhaust device
SU1388877A1 (en) 1986-09-16 1988-04-15 Таганрогский радиотехнический институт им.В.Д.Калмыкова Device for addressing storage units
SU1408439A1 (en) 1986-10-20 1988-07-07 Предприятие П/Я В-2129 Addressing device for automatic configuration of computer memory
US4953122A (en) 1986-10-31 1990-08-28 Laserdrive Ltd. Pseudo-erasable and rewritable write-once optical disk memory system
JPH0636578Y2 (en) 1987-04-10 1994-09-21 日本電気株式会社 Semiconductor integrated circuit
JPS63183700U (en) 1987-05-19 1988-11-25
JPS63198567U (en) 1987-06-12 1988-12-21
JPS6473430A (en) 1987-09-14 1989-03-17 Hudson Soft Co Ltd Memory access control device
JPH081760B2 (en) 1987-11-17 1996-01-10 三菱電機株式会社 Semiconductor memory device
JPH01137817A (en) 1987-11-25 1989-05-30 Toshiba Corp Delay circuit
JP2696864B2 (en) 1987-11-25 1998-01-14 日本電気株式会社 Memory device
SU1515164A1 (en) 1988-01-12 1989-10-15 Предприятие П/Я Г-4493 Device for addressing a memory
SU1541619A1 (en) 1988-05-30 1990-02-07 Предприятие П/Я Г-4173 Device for shaping address
US5198380A (en) 1988-06-08 1993-03-30 Sundisk Corporation Method of highly compact EPROM and flash EEPROM devices
US5268870A (en) 1988-06-08 1993-12-07 Eliyahou Harari Flash EEPROM system and intelligent programming and erasing methods therefor
US5268318A (en) 1988-06-08 1993-12-07 Eliyahou Harari Highly compact EPROM and flash EEPROM devices
US5268319A (en) 1988-06-08 1993-12-07 Eliyahou Harari Highly compact EPROM and flash EEPROM devices
US5293560A (en) 1988-06-08 1994-03-08 Eliyahou Harari Multi-state flash EEPROM system using incremental programing and erasing methods
US5168465A (en) 1988-06-08 1992-12-01 Eliyahou Harari Highly compact EPROM and flash EEPROM devices
US4914529A (en) 1988-07-18 1990-04-03 Western Digital Corp. Data disk defect handling using relocation ID fields
US5070474A (en) 1988-07-26 1991-12-03 Disk Emulation Systems, Inc. Disk emulation system
JPH064399Y2 (en) 1988-08-10 1994-02-02 株式会社セガ・エンタープライゼス Sound generator
US5253351A (en) 1988-08-11 1993-10-12 Hitachi, Ltd. Memory controller with a cache memory and control method of cache memory including steps of determining memory access threshold values
SU1573458A2 (en) 1988-09-26 1990-06-23 Войсковая Часть 32103 Addressing device
JPH0793499B2 (en) 1989-01-10 1995-10-09 キヤノン株式会社 Hole drilling method using laser
DE69034191T2 (en) 1989-04-13 2005-11-24 Sandisk Corp., Sunnyvale EEPROM system with multi-chip block erasure
US5535328A (en) 1989-04-13 1996-07-09 Sandisk Corporation Non-volatile memory system card with flash erasable sectors of EEprom cells including a mechanism for substituting defective cells
US5226168A (en) 1989-04-25 1993-07-06 Seiko Epson Corporation Semiconductor memory configured to emulate floppy and hard disk magnetic storage based upon a determined storage capacity of the semiconductor memory
JPH02308738A (en) 1989-05-22 1990-12-21 Masao Shiotani Fish reef for lobster
US5200959A (en) 1989-10-17 1993-04-06 Sundisk Corporation Device and method for defect handling in semi-conductor memory
SU1686449A2 (en) 1989-10-23 1991-10-23 Войсковая Часть 32103 Addressing device
US5247658A (en) 1989-10-31 1993-09-21 Microsoft Corporation Method and system for traversing linked list record based upon write-once predetermined bit value of secondary pointers
JPH03228377A (en) 1990-02-02 1991-10-09 Toshiba Corp Semiconductor device
US5218695A (en) 1990-02-05 1993-06-08 Epoch Systems, Inc. File server system having high-speed write execution
US5220518A (en) 1990-06-07 1993-06-15 Vlsi Technology, Inc. Integrated circuit memory with non-binary array configuration
US5303198A (en) 1990-09-28 1994-04-12 Fuji Photo Film Co., Ltd. Method of recording data in memory card having EEPROM and memory card system using the same
EP0489204B1 (en) 1990-12-04 1995-08-16 Hewlett-Packard Limited Reprogrammable data storage device
JPH04216392A (en) 1990-12-18 1992-08-06 Mitsubishi Electric Corp Semiconductor storage device provided with block write function
GB2251324B (en) 1990-12-31 1995-05-10 Intel Corp File structure for a non-volatile semiconductor memory
GB2251323B (en) 1990-12-31 1994-10-12 Intel Corp Disk emulation for a non-volatile semiconductor memory
JPH04268284A (en) 1991-02-22 1992-09-24 Fuji Photo Film Co Ltd Memory card
JP3126396B2 (en) 1991-02-06 2001-01-22 株式会社東芝 Nonvolatile semiconductor memory device
JPH04278297A (en) 1991-03-07 1992-10-02 Toshiba Corp Nonvolatile semiconductor memory
US5396468A (en) 1991-03-15 1995-03-07 Sundisk Corporation Streamlined write operation for EEPROM system
US5270979A (en) 1991-03-15 1993-12-14 Sundisk Corporation Method for optimum erasing of EEPROM
US5504760A (en) 1991-03-15 1996-04-02 Sandisk Corporation Mixed data encoding EEPROM system
US5663901A (en) 1991-04-11 1997-09-02 Sandisk Corporation Computer memory cards using flash EEPROM integrated circuit chips and memory-controller systems
JPH04332999A (en) 1991-05-07 1992-11-19 Hitachi Koki Co Ltd Method of using memory
JP2582487B2 (en) 1991-07-12 1997-02-19 インターナショナル・ビジネス・マシーンズ・コーポレイション External storage system using semiconductor memory and control method thereof
US5430859A (en) 1991-07-26 1995-07-04 Sundisk Corporation Solid state memory system including plural memory chips and a serialized bus
EP0772358A1 (en) 1991-08-09 1997-05-07 Kabushiki Kaisha Toshiba Memory card apparatus
JP3229345B2 (en) 1991-09-11 2001-11-19 ローム株式会社 Non-volatile IC memory
US6230233B1 (en) 1991-09-13 2001-05-08 Sandisk Corporation Wear leveling techniques for flash EEPROM systems
US5438573A (en) 1991-09-13 1995-08-01 Sundisk Corporation Flash EEPROM array data and header file structure
US5357462A (en) 1991-09-24 1994-10-18 Kabushiki Kaisha Toshiba Electrically erasable and programmable non-volatile semiconductor memory with automatic write-verify controller
US5778418A (en) 1991-09-27 1998-07-07 Sandisk Corporation Mass computer storage system having both solid state and rotating disk types of memory
US5227714A (en) 1991-10-07 1993-07-13 Brooktree Corporation Voltage regulator
US5640528A (en) 1991-10-24 1997-06-17 Intel Corporation Method and apparatus for translating addresses using mask and replacement value registers
US5315558A (en) 1991-10-25 1994-05-24 Vlsi Technology, Inc. Integrated circuit memory with non-binary array configuration
US5359569A (en) 1991-10-29 1994-10-25 Hitachi Ltd. Semiconductor memory
JPH05128877A (en) 1991-11-07 1993-05-25 Mitsubishi Electric Corp Nonvolatile semiconductor memory device
JPH05151097A (en) 1991-11-28 1993-06-18 Fujitsu Ltd Data control system for rewriting frequency limited type memory
JP3171901B2 (en) 1992-02-05 2001-06-04 セイコーインスツルメンツ株式会社 Rewriting method of nonvolatile memory card
JPH05233426A (en) 1992-02-20 1993-09-10 Fujitsu Ltd Flash memory using method
DE69326370T2 (en) 1992-03-05 2000-01-20 Toshiba Kawasaki Kk Non-volatile semiconductor memory device
FR2688333B1 (en) 1992-03-06 1994-04-29 Sgc Thomson Microelectronics S DEVICE AND METHOD FOR DELETING BY SECTORS OF A FLASH EPROM MEMORY.
TW231343B (en) 1992-03-17 1994-10-01 Hitachi Seisakusyo Kk
JP2830594B2 (en) 1992-03-26 1998-12-02 日本電気株式会社 Semiconductor memory device
US5267218A (en) 1992-03-31 1993-11-30 Intel Corporation Nonvolatile memory card with a single power supply input
JP3485938B2 (en) 1992-03-31 2004-01-13 株式会社東芝 Nonvolatile semiconductor memory device
JP3323869B2 (en) 1992-03-31 2002-09-09 株式会社東芝 Nonvolatile semiconductor memory device
US5532962A (en) 1992-05-20 1996-07-02 Sandisk Corporation Soft errors handling in EEPROM devices
US5381539A (en) 1992-06-04 1995-01-10 Emc Corporation System and method for dynamically controlling cache management
DE4219145C1 (en) 1992-06-11 1994-03-17 Emitec Emissionstechnologie Method and device for soldering a metallic honeycomb body
JP3328321B2 (en) 1992-06-22 2002-09-24 株式会社日立製作所 Semiconductor storage device
JPH0612863A (en) 1992-06-26 1994-01-21 Toshiba Corp Dual port dram
US5592415A (en) 1992-07-06 1997-01-07 Hitachi, Ltd. Non-volatile semiconductor memory
US5315541A (en) 1992-07-24 1994-05-24 Sundisk Corporation Segmented column memory array
JP2768618B2 (en) 1992-08-28 1998-06-25 シャープ株式会社 Semiconductor disk device
JPH06103748A (en) 1992-09-16 1994-04-15 Mitsubishi Electric Corp Power control circuit for ic memory card
US5428621A (en) 1992-09-21 1995-06-27 Sundisk Corporation Latent defect handling in EEPROM devices
JP3105092B2 (en) 1992-10-06 2000-10-30 株式会社東芝 Semiconductor memory device
JP3177015B2 (en) 1992-10-14 2001-06-18 株式会社東芝 Control method of semiconductor memory device
JPH06131889A (en) 1992-10-14 1994-05-13 Toshiba Corp Semiconductor filing device
JPH06132747A (en) 1992-10-20 1994-05-13 Fujitsu Ltd Semiconductor device
JP3641280B2 (en) 1992-10-30 2005-04-20 インテル・コーポレーション Method for determining blocks to be cleaned up in a flash EEPROM array
US5822781A (en) 1992-10-30 1998-10-13 Intel Corporation Sector-based storage device emulator having variable-sized sector
US5341330A (en) 1992-10-30 1994-08-23 Intel Corporation Method for writing to a flash memory array during erase suspend intervals
US5357475A (en) 1992-10-30 1994-10-18 Intel Corporation Method for detaching sectors in a flash EEPROM memory array
US5337275A (en) 1992-10-30 1994-08-09 Intel Corporation Method for releasing space in flash EEPROM memory array to allow the storage of compressed data
US5734567A (en) 1992-11-06 1998-03-31 Siemens Aktiengesellschaft Diagnosis system for a plant
JPH06149395A (en) 1992-11-12 1994-05-27 Nec Corp Semiconductor device
JPH06236686A (en) 1993-01-22 1994-08-23 Nec Corp Semiconductor device
US5581723A (en) 1993-02-19 1996-12-03 Intel Corporation Method and apparatus for retaining flash block structure data during erase operations in a flash EEPROM memory array
JP2856621B2 (en) 1993-02-24 1999-02-10 インターナショナル・ビジネス・マシーンズ・コーポレイション Batch erase nonvolatile memory and semiconductor disk device using the same
US5812814A (en) 1993-02-26 1998-09-22 Kabushiki Kaisha Toshiba Alternative flash EEPROM semiconductor memory system
JP3594626B2 (en) 1993-03-04 2004-12-02 株式会社ルネサステクノロジ Non-volatile memory device
US5404485A (en) 1993-03-08 1995-04-04 M-Systems Flash Disk Pioneers Ltd. Flash file system
JPH06266596A (en) 1993-03-11 1994-09-22 Hitachi Ltd Flash memory file storage device and information processor
JP3477781B2 (en) 1993-03-23 2003-12-10 セイコーエプソン株式会社 IC card
US5388083A (en) 1993-03-26 1995-02-07 Cirrus Logic, Inc. Flash memory mass storage architecture
US5485595A (en) 1993-03-26 1996-01-16 Cirrus Logic, Inc. Flash memory mass storage architecture incorporating wear leveling technique without using cam cells
US5479638A (en) 1993-03-26 1995-12-26 Cirrus Logic, Inc. Flash memory mass storage architecture incorporation wear leveling technique
KR970008188B1 (en) 1993-04-08 1997-05-21 가부시끼가이샤 히다찌세이사꾸쇼 Control method of flash memory and information processing apparatus using the same
JP3330187B2 (en) 1993-05-13 2002-09-30 株式会社リコー Memory card
US5329491A (en) 1993-06-30 1994-07-12 Intel Corporation Nonvolatile memory card with automatic power supply configuration
US5519847A (en) 1993-06-30 1996-05-21 Intel Corporation Method of pipelining sequential writes in a flash memory
US5353256A (en) 1993-06-30 1994-10-04 Intel Corporation Block specific status information in a memory device
US5422842A (en) 1993-07-08 1995-06-06 Sundisk Corporation Method and circuit for simultaneously programming and verifying the programming of selected EEPROM cells
US5465338A (en) 1993-08-24 1995-11-07 Conner Peripherals, Inc. Disk drive system interface architecture employing state machines
US5566314A (en) 1993-08-30 1996-10-15 Lucent Technologies Inc. Flash memory device employing unused cell arrays to update files
JP2922116B2 (en) 1993-09-02 1999-07-19 株式会社東芝 Semiconductor storage device
JP3683915B2 (en) 1993-09-24 2005-08-17 株式会社東芝 Semiconductor memory device
JP3215237B2 (en) 1993-10-01 2001-10-02 富士通株式会社 Storage device and method for writing / erasing storage device
US5365127A (en) 1993-10-18 1994-11-15 Hewlett-Packard Company Circuit for conversion from CMOS voltage levels to shifted ECL voltage levels with process compensation
JPH07141258A (en) 1993-11-15 1995-06-02 Toshiba Corp Data recording and reproducing device
JPH0818018B2 (en) 1993-11-29 1996-02-28 英和 室谷 Method and apparatus for controlling hydrogen sulfide in sewage by chemical injection
JPH07235193A (en) 1993-12-28 1995-09-05 Toshiba Corp Semiconductor memory
EP0663636B1 (en) 1994-01-12 2001-10-31 Sun Microsystems, Inc. Logically addressable physical memory for a virtual memory computer system that supports multiple page sizes
US5473765A (en) 1994-01-24 1995-12-05 3Com Corporation Apparatus for using flash memory as a floppy disk emulator in a computer system
US6026027A (en) 1994-01-31 2000-02-15 Norand Corporation Flash memory system having memory cache
US5661053A (en) 1994-05-25 1997-08-26 Sandisk Corporation Method of making dense flash EEPROM cell array and peripheral supporting circuits formed in deposited field oxide with the use of spacers
US5603001A (en) 1994-05-09 1997-02-11 Kabushiki Kaisha Toshiba Semiconductor disk system having a plurality of flash memories
JPH07311708A (en) 1994-05-18 1995-11-28 Fuji Film Micro Device Kk Memory card
JP3092449B2 (en) 1994-06-06 2000-09-25 ヤマハ株式会社 Semiconductor storage device
JPH0869696A (en) 1994-08-31 1996-03-12 Toshiba Corp Semiconductor storage
US5809558A (en) 1994-09-29 1998-09-15 Intel Corporation Method and data storage system for storing data in blocks without file reallocation before erasure
US5508971A (en) 1994-10-17 1996-04-16 Sandisk Corporation Programmable power generation circuit for flash EEPROM memory systems
US5606660A (en) 1994-10-21 1997-02-25 Lexar Microsystems, Inc. Method and apparatus for combining controller firmware storage and controller logic in a mass storage system
JP2669365B2 (en) 1994-11-24 1997-10-27 日本電気株式会社 Rewritable ROM file device
US5537077A (en) 1994-12-23 1996-07-16 Advanced Micro Devices, Inc. Power supply dependent method of controlling a charge pump
US5901312A (en) 1994-12-13 1999-05-04 Microsoft Corporation Providing application programs with unmediated access to a contested hardware resource
US5847552A (en) 1995-01-24 1998-12-08 Dell Usa, L.P. Integrated circuit with determinate power source control
JPH08212019A (en) 1995-01-31 1996-08-20 Mitsubishi Electric Corp Semiconductor disk device
JPH08263361A (en) 1995-03-23 1996-10-11 Mitsubishi Electric Corp Flash memory card
US5818350A (en) 1995-04-11 1998-10-06 Lexar Microsystems Inc. High performance method of and system for selecting one of a plurality of IC chip while requiring minimal select lines
US6072796A (en) 1995-06-14 2000-06-06 Avid Technology, Inc. Apparatus and method for accessing memory in a TDM network
US5723990A (en) 1995-06-21 1998-03-03 Micron Quantum Devices, Inc. Integrated circuit having high voltage detection circuit
US5552698A (en) 1995-06-29 1996-09-03 United Microelectronics Corp. Voltage supply system for IC chips
US5627416A (en) 1995-07-21 1997-05-06 Itt Corporation Multi-voltage IC card host
US5845313A (en) 1995-07-31 1998-12-01 Lexar Direct logical block addressing flash memory mass storage architecture
US6757800B1 (en) 1995-07-31 2004-06-29 Lexar Media, Inc. Increasing the memory performance of flash memory devices by writing sectors simultaneously to multiple flash memory devices
US6728851B1 (en) 1995-07-31 2004-04-27 Lexar Media, Inc. Increasing the memory performance of flash memory devices by writing sectors simultaneously to multiple flash memory devices
US5930815A (en) 1995-07-31 1999-07-27 Lexar Media, Inc. Moving sequential sectors within a block of information in a flash memory mass storage architecture
US6081878A (en) 1997-03-31 2000-06-27 Lexar Media, Inc. Increasing the memory performance of flash memory devices by writing sectors simultaneously to multiple flash memory devices
US5838614A (en) 1995-07-31 1998-11-17 Lexar Microsystems, Inc. Identification and verification of a sector within a block of mass storage flash memory
US6978342B1 (en) 1995-07-31 2005-12-20 Lexar Media, Inc. Moving sectors within a block of information in a flash memory mass storage architecture
US5907856A (en) 1995-07-31 1999-05-25 Lexar Media, Inc. Moving sectors within a block of information in a flash memory mass storage architecture
US5596526A (en) 1995-08-15 1997-01-21 Lexar Microsystems, Inc. Non-volatile memory system of multi-level transistor cells and methods using same
JPH0954726A (en) 1995-08-18 1997-02-25 Mitsubishi Electric Corp Memory device
JPH0969295A (en) 1995-08-31 1997-03-11 Sanyo Electric Co Ltd Non-volatile multi-value memory device
US6125435A (en) 1995-09-13 2000-09-26 Lexar Media, Inc. Alignment of cluster address to block addresses within a semiconductor non-volatile mass storage memory
US5835935A (en) 1995-09-13 1998-11-10 Lexar Media, Inc. Method of and architecture for controlling system data with automatic wear leveling in a semiconductor non-volatile mass storage memory
GB2291990A (en) 1995-09-27 1996-02-07 Memory Corp Plc Flash-memory management system
GB2291991A (en) 1995-09-27 1996-02-07 Memory Corp Plc Disk drive emulation with a block-erasable memory
US5809560A (en) 1995-10-13 1998-09-15 Compaq Computer Corporation Adaptive read-ahead disk cache
KR100253868B1 (en) 1995-11-13 2000-05-01 니시무로 타이죠 Non-volatile semiconductor memory device
DE69627176T2 (en) 1995-11-13 2004-02-05 Lexar Media, Inc., Fremont AUTOMATIC VOLTAGE DETECTION IN MULTIPLE VOLTAGE APPLICATIONS
JPH09147581A (en) 1995-11-21 1997-06-06 Hitachi Ltd Semiconductor storage device and data processing apparatus
US5799168A (en) 1996-01-05 1998-08-25 M-Systems Flash Disk Pioneers Ltd. Standardized flash controller
JPH09212411A (en) 1996-02-06 1997-08-15 Tokyo Electron Ltd Memory system
US5724303A (en) 1996-02-15 1998-03-03 Nexcom Technology, Inc. Non-volatile programmable memory having an SRAM capability
US5787445A (en) 1996-03-07 1998-07-28 Norris Communications Corporation Operating system including improved file management for use in devices utilizing flash memory as main memory
US5822252A (en) 1996-03-29 1998-10-13 Aplus Integrated Circuits, Inc. Flash memory wordline decoder with overerase repair
GB9606927D0 (en) 1996-04-02 1996-06-05 Memory Corp Plc Data storage devices
GB9606928D0 (en) 1996-04-02 1996-06-05 Memory Corp Plc Memory devices
US5991849A (en) 1996-04-10 1999-11-23 Sanyo Electric Co., Ltd Rewriting protection of a size varying first region of a reprogrammable non-volatile memory
GB9609833D0 (en) 1996-05-10 1996-07-17 Memory Corp Plc Memory device
JP3493096B2 (en) 1996-06-07 2004-02-03 株式会社東芝 Semiconductor integrated circuit, IC card, and IC card system
US5959926A (en) 1996-06-07 1999-09-28 Dallas Semiconductor Corp. Programmable power supply systems and methods providing a write protected memory having multiple interface capability
AU716035B2 (en) 1996-06-18 2000-02-17 Ontrack Data International, Inc. Apparatus and method for remote data recovery
GB9613088D0 (en) 1996-06-21 1996-08-28 Memory Corp Plc Memory device
US5758100A (en) 1996-07-01 1998-05-26 Sun Microsystems, Inc. Dual voltage module interconnect
GB9614551D0 (en) 1996-07-11 1996-09-04 Memory Corp Plc Memory system
US5757712A (en) 1996-07-12 1998-05-26 International Business Machines Corporation Memory modules with voltage regulation and level translation
JP3761635B2 (en) 1996-07-12 2006-03-29 株式会社ダックス Memory board, memory access method, and memory access device
US5787484A (en) 1996-08-08 1998-07-28 Micron Technology, Inc. System and method which compares data preread from memory cells to data to be written to the cells
US6021408A (en) 1996-09-12 2000-02-01 Veritas Software Corp. Methods for operating a log device
US5920884A (en) 1996-09-24 1999-07-06 Hyundai Electronics America, Inc. Nonvolatile memory interface protocol which selects a memory device, transmits an address, deselects the device, subsequently reselects the device and accesses data
US5860124A (en) 1996-09-30 1999-01-12 Intel Corporation Method for performing a continuous over-write of a file in nonvolatile memory
US5754567A (en) 1996-10-15 1998-05-19 Micron Quantum Devices, Inc. Write reduction in flash memory systems through ECC usage
US6047352A (en) 1996-10-29 2000-04-04 Micron Technology, Inc. Memory system, method and predecoding circuit operable in different modes for selectively accessing multiple blocks of memory cells for simultaneous writing or erasure
US5890192A (en) 1996-11-05 1999-03-30 Sandisk Corporation Concurrent write of multiple chunks of data into multiple subarrays of flash EEPROM
US5909586A (en) 1996-11-06 1999-06-01 The Foxboro Company Methods and systems for interfacing with an interface powered I/O device
US5956473A (en) 1996-11-25 1999-09-21 Macronix International Co., Ltd. Method and system for managing a flash memory mass storage system
US5745418A (en) 1996-11-25 1998-04-28 Macronix International Co., Ltd. Flash memory mass storage system
JPH10154101A (en) 1996-11-26 1998-06-09 Toshiba Corp Data storage system and cache controlling method applying to the system
JPH10177797A (en) 1996-12-17 1998-06-30 Toshiba Corp Semiconductor memory
JPH10187505A (en) 1996-12-24 1998-07-21 Toshiba Corp Information storage system and data arranging method applied to the system
US6279069B1 (en) 1996-12-26 2001-08-21 Intel Corporation Interface for flash EEPROM memory arrays
US5901086A (en) 1996-12-26 1999-05-04 Motorola, Inc. Pipelined fast-access floating gate memory architecture and method of operation
US5928370A (en) 1997-02-05 1999-07-27 Lexar Media, Inc. Method and apparatus for verifying erasure of memory blocks within a non-volatile memory structure
US5822245A (en) 1997-03-26 1998-10-13 Atmel Corporation Dual buffer flash memory architecture with multiple operating modes
US5953737A (en) 1997-03-31 1999-09-14 Lexar Media, Inc. Method and apparatus for performing erase operations transparent to a solid state storage system
US6034897A (en) 1999-04-01 2000-03-07 Lexar Media, Inc. Space management for managing high capacity nonvolatile memory
US6411546B1 (en) 1997-03-31 2002-06-25 Lexar Media, Inc. Nonvolatile memory using flexible erasing methods and method and system for using same
US6122195A (en) 1997-03-31 2000-09-19 Lexar Media, Inc. Method and apparatus for decreasing block write operation times performed on nonvolatile memory
US5831929A (en) 1997-04-04 1998-11-03 Micron Technology, Inc. Memory device with staggered data paths
JP3592887B2 (en) 1997-04-30 2004-11-24 株式会社東芝 Nonvolatile semiconductor memory device
US6011322A (en) 1997-07-28 2000-01-04 Sony Corporation Apparatus and method for providing power to circuitry implementing two different power sources
US6226708B1 (en) 1997-08-18 2001-05-01 Texas Instruments Incorporated Method and system for efficiently programming non-volatile memory
US6011323A (en) 1997-09-30 2000-01-04 International Business Machines Corporation Apparatus, method and article of manufacture providing for auxiliary battery conservation in adapters
US5937425A (en) 1997-10-16 1999-08-10 M-Systems Flash Disk Pioneers Ltd. Flash file system optimized for page-mode flash technologies
JPH11224492A (en) 1997-11-06 1999-08-17 Toshiba Corp Semiconductor memory, non-volatile semiconductor memory, and flash memory
US5974439A (en) 1997-11-21 1999-10-26 International Business Machines Corporation Resource sharing between real-time and general purpose programs
US6018265A (en) 1997-12-10 2000-01-25 Lexar Media, Inc. Internal CMOS reference generator and voltage regulator
US6076137A (en) 1997-12-11 2000-06-13 Lexar Media, Inc. Method and apparatus for storing location identification information within non-volatile memory devices
US6029179A (en) * 1997-12-18 2000-02-22 International Business Machines Corporation Automated read-only volume processing in a virtual tape server
GB9801373D0 (en) 1998-01-22 1998-03-18 Memory Corp Plc Memory system
US5969986A (en) 1998-06-23 1999-10-19 Invox Technology High-bandwidth read and write architectures for non-volatile memories
US6182162B1 (en) 1998-03-02 2001-01-30 Lexar Media, Inc. Externally coupled compact flash memory card that configures itself one of a plurality of appropriate operating protocol modes of a host computer
US6040997A (en) 1998-03-25 2000-03-21 Lexar Media, Inc. Flash memory leveling architecture having no external latch
GB9806687D0 (en) 1998-03-27 1998-05-27 Memory Corp Plc Memory system
US6055184A (en) 1998-09-02 2000-04-25 Texas Instruments Incorporated Semiconductor memory device having programmable parallel erase operation
US6279114B1 (en) 1998-11-04 2001-08-21 Sandisk Corporation Voltage negotiation in a single host multiple cards system
US6490649B2 (en) 1998-11-10 2002-12-03 Lexar Media, Inc. Memory device
AU1729100A (en) 1998-11-17 2000-06-05 Lexar Media, Inc. Method and apparatus for memory control circuit
GB9903490D0 (en) 1999-02-17 1999-04-07 Memory Corp Plc Memory system
US6084483A (en) 1999-03-10 2000-07-04 Lexar Media, Inc. Internal oscillator circuit including a ring oscillator controlled by a voltage regulator circuit
EP1228510B1 (en) 1999-04-01 2006-09-20 Lexar Media, Inc. Space management for managing high capacity nonvolatile memory
US6141249A (en) 1999-04-01 2000-10-31 Lexar Media, Inc. Organization of blocks within a nonvolatile memory unit to effectively decrease sector write operation time
US6181118B1 (en) 1999-06-24 2001-01-30 Analog Devices, Inc. Control circuit for controlling a semi-conductor switch for selectively outputting an output voltage at two voltage levels
US6567307B1 (en) 2000-07-21 2003-05-20 Lexar Media, Inc. Block management for mass storage
TW539946B (en) 2001-08-07 2003-07-01 Solid State System Company Ltd Window-based flash memory storage system, and the management method and the access method thereof
US7499966B2 (en) * 2001-08-23 2009-03-03 International Business Machines Corporation Web server architecture for improved performance
GB0123416D0 (en) 2001-09-28 2001-11-21 Memquest Ltd Non-volatile memory control
GB0123419D0 (en) 2001-09-28 2001-11-21 Memquest Ltd Data handling system
GB0123415D0 (en) 2001-09-28 2001-11-21 Memquest Ltd Method of writing data to non-volatile memory
GB0123422D0 (en) 2001-09-28 2001-11-21 Memquest Ltd Improved memory controller
GB0123412D0 (en) 2001-09-28 2001-11-21 Memquest Ltd Memory system sectors
GB0123410D0 (en) 2001-09-28 2001-11-21 Memquest Ltd Memory system for data storage and retrieval
GB2411499B (en) 2001-09-28 2006-02-08 Lexar Media Inc Method of writing data to non-volatile memory
US6957295B1 (en) 2002-01-18 2005-10-18 Lexar Media, Inc. File management of one-time-programmable nonvolatile memory devices
US6950918B1 (en) 2002-01-18 2005-09-27 Lexar Media, Inc. File management of one-time-programmable nonvolatile memory devices
US6973519B1 (en) 2003-06-03 2005-12-06 Lexar Media, Inc. Card identification compatibility

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5671442A (en) * 1993-02-12 1997-09-23 International Business Machines Corporation System having device driver operates in first mode for allowing concurrent access to adapter by applications and second mode for limiting access to one application
US6173291B1 (en) * 1997-09-26 2001-01-09 Powerquest Corporation Method and apparatus for recovering data from damaged or corrupted file storage media
US6138200A (en) * 1998-06-09 2000-10-24 International Business Machines Corporation System for allocating bus bandwidth by assigning priority for each bus duration time slot to application using bus frame and bus duration

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